We will be having a relative with some mobility issues coming to live with me in my small detached 1984 house. I don’t want a stair lift but I’ve been thinking about having a small sub 3m2 brick porch built on the front of the house. My thoughts are could a builder stihl saw an opening in the downstairs wc cavity wall and build in a small 700mm wide shower that’s within the brick porch? Attached are a few photos and a rough illustration. If it’s too much hassle I won’t bother but if it’s feasible I will get quotes from a few local builders.